/* ============================================================
   KKM Studio — editorial + warm design system
   for kkm-studio.com main pages (top / apps / content / column)
   Legal docs continue to use style.css (chalkboard theme)
   ============================================================ */

:root {
  /* ink */
  --ink:        #141212;
  --ink-2:      #3d3835;
  --ink-3:      #6d655f;
  --ink-mute:   #a49a90;
  --line:       #e6dfd3;
  --line-soft:  #f1eadd;

  /* surface */
  --cream:      #faf7f0;
  --cream-2:    #f2ecdf;
  --paper:      #ffffff;

  /* accents */
  --coral:      #e8594e;   /* creative apps */
  --coral-dark: #c8433a;
  --indigo:     #2b3467;   /* elementary education */
  --indigo-dark:#1e2650;
  --yellow:     #f5c542;
  --mint:       #b5d5c0;
  --sand:       #ead7b1;

  /* type */
  --serif: "Zen Old Mincho", "游明朝", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --sans:  "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --english: "Fraunces", "Times New Roman", serif;

  --shadow-sm: 0 1px 2px rgba(20,18,18,.05), 0 2px 6px rgba(20,18,18,.05);
  --shadow-md: 0 6px 16px rgba(20,18,18,.08), 0 2px 4px rgba(20,18,18,.04);
  --shadow-lg: 0 18px 40px rgba(20,18,18,.10), 0 6px 14px rgba(20,18,18,.05);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  font-size: 16px;
  line-height: 1.85;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- container ---------- */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.wrap--narrow { max-width: 780px; }

/* ---------- header ---------- */
.k-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 240, .85);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}

.k-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  max-width: 1280px;
  margin: 0 auto;
}

.k-brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--english);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.k-brand__mark {
  color: var(--coral);
  font-weight: 600;
}

.k-brand__sub {
  font-family: var(--sans);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.15em;
  margin-left: 4px;
}

.k-nav {
  display: flex;
  gap: 32px;
  align-items: center;
  font-size: 14px;
  letter-spacing: 0.05em;
}

.k-nav a {
  color: var(--ink-2);
  position: relative;
  padding: 4px 0;
  transition: color .18s;
}

.k-nav a:hover { color: var(--coral); }

.k-nav a.is-active {
  color: var(--ink);
}
.k-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--coral);
}

@media (max-width: 720px) {
  .k-header__inner { padding: 12px 18px; gap: 10px; }
  .k-brand { font-size: 17px; white-space: nowrap; }
  .k-brand__sub { display: none; }
  .k-nav { gap: 14px; font-size: 12px; white-space: nowrap; }
}
@media (max-width: 420px) {
  .k-brand { font-size: 15px; }
  .k-nav { gap: 10px; font-size: 11px; }
}

/* ---------- hero ---------- */
.k-hero {
  padding: 80px 0 100px;
  background:
    radial-gradient(ellipse 900px 500px at 20% 0%, rgba(245, 197, 66, .18), transparent 60%),
    radial-gradient(ellipse 700px 400px at 90% 40%, rgba(232, 89, 78, .10), transparent 60%),
    var(--cream);
  position: relative;
  overflow: hidden;
}

.k-hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.k-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--english);
  font-size: 12px;
  letter-spacing: 0.25em;
  color: var(--ink-3);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.k-hero__eyebrow::before {
  content: "";
  width: 32px; height: 1px;
  background: var(--ink-3);
}

.k-hero__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 6.2vw, 74px);
  line-height: 1.28;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 0 0 28px;
}

.k-hero__title em {
  font-style: normal;
  color: var(--coral);
  border-bottom: 3px solid var(--coral);
  padding-bottom: 4px;
}

.k-hero__lead {
  font-size: 17px;
  line-height: 2;
  color: var(--ink-2);
  max-width: 480px;
  margin: 0 0 40px;
}

.k-hero__ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.k-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.03em;
  transition: transform .18s, box-shadow .18s;
  border: 0;
  cursor: pointer;
}
.k-btn--primary {
  background: var(--coral);
  color: #fff;
  box-shadow: 0 6px 14px rgba(232, 89, 78, .28);
}
.k-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(232, 89, 78, .32);
}
.k-btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--ink);
}
.k-btn--ghost:hover {
  background: var(--ink);
  color: var(--cream);
}
.k-btn--indigo {
  background: var(--indigo);
  color: #fff;
  box-shadow: 0 6px 14px rgba(43, 52, 103, .28);
}
.k-btn--indigo:hover { transform: translateY(-2px); }

/* hero collage — magazine-style overlapping cards */
.k-hero__collage {
  position: relative;
  aspect-ratio: 1 / 1.05;
  width: 100%;
  max-width: 560px;
  margin-left: auto;
}
.k-hero__collage-card {
  position: absolute;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--paper);
  transition: transform .4s ease;
}
.k-hero__collage-card:hover { transform: scale(1.02) rotate(0deg) !important; }

.k-hero__collage-card--a {
  top: 4%; left: 0;
  width: 58%; aspect-ratio: 3/4;
  transform: rotate(-5deg);
  background: linear-gradient(160deg, #3e5b4a 0%, #2e4538 100%);
  z-index: 2;
}
.k-hero__collage-card--b {
  top: 8%; right: 0;
  width: 52%; aspect-ratio: 4/5;
  transform: rotate(6deg);
  background: linear-gradient(160deg, #b8848c 0%, #7a4a5a 100%);
  z-index: 1;
}
.k-hero__collage-card--c {
  bottom: 0; left: 18%;
  width: 64%; aspect-ratio: 3/2;
  transform: rotate(3deg);
  background: linear-gradient(160deg, #f5c542 0%, #e8594e 100%);
  z-index: 3;
}
.k-hero__collage-card img {
  width: 100%; height: 100%; object-fit: cover;
}
.k-hero__collage-card--label {
  display: flex;
  padding: 28px 26px;
  color: #fff;
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 26px);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.05em;
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}
/* card A (green, back-left): text at top-left so orange card doesn't cover it */
.k-hero__collage-card--a.k-hero__collage-card--label { align-items: flex-start; color: #f4d35e; }
/* card B (pink, back-right): text at top-right */
.k-hero__collage-card--b.k-hero__collage-card--label { align-items: flex-start; justify-content: flex-end; text-align: right; }
/* card C (orange, front): text at bottom-left */
.k-hero__collage-card--c.k-hero__collage-card--label { align-items: flex-end; }

@media (max-width: 900px) {
  .k-hero { padding: 56px 0 72px; }
  .k-hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .k-hero__collage { max-width: 360px; margin: 0 auto; }
}

/* ---------- section chrome ---------- */
.k-section {
  padding: 100px 0;
}
.k-section--paper { background: var(--paper); }
.k-section--indigo { background: var(--indigo); color: var(--cream); }
.k-section--cream2 { background: var(--cream-2); }

.k-section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 40px;
  align-items: baseline;
  margin-bottom: 56px;
}
.k-section-head__num {
  font-family: var(--english);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--ink-3);
  border-top: 1px solid var(--ink-3);
  padding-top: 12px;
  min-width: 80px;
}
.k-section-head__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.4;
  margin: 0;
  letter-spacing: 0.02em;
}
.k-section-head__sub {
  color: var(--ink-3);
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.9;
}
@media (max-width: 720px) {
  .k-section { padding: 72px 0; }
  .k-section-head { grid-template-columns: 1fr; gap: 12px; margin-bottom: 40px; }
  .k-section-head__num { padding-top: 0; border-top: 0; border-left: 2px solid var(--coral); padding-left: 12px; }
}

/* ---------- two-pillar cards ---------- */
.k-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.k-pillar {
  background: var(--paper);
  border-radius: 24px;
  padding: 44px 40px 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform .3s, box-shadow .3s;
}
.k-pillar:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.k-pillar__bg {
  position: absolute;
  top: -80px; right: -80px;
  width: 240px; height: 240px;
  border-radius: 50%;
  opacity: 0.14;
}
.k-pillar--creative .k-pillar__bg { background: var(--coral); }
.k-pillar--edu .k-pillar__bg { background: var(--indigo); }

.k-pillar__num {
  font-family: var(--english);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--ink-mute);
  margin: 0 0 12px;
}
.k-pillar__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 30px;
  line-height: 1.4;
  margin: 0 0 20px;
  letter-spacing: 0.02em;
}
.k-pillar__title span {
  padding: 0 4px;
  background: linear-gradient(transparent 60%, var(--yellow) 60%);
}
.k-pillar__lead {
  color: var(--ink-2);
  line-height: 2;
  margin: 0 0 28px;
}
.k-pillar__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--ink);
  border-bottom: 1.5px solid var(--ink);
  padding-bottom: 2px;
  transition: gap .2s, color .2s, border-color .2s;
}
.k-pillar--creative .k-pillar__link:hover { color: var(--coral); border-color: var(--coral); gap: 14px; }
.k-pillar--edu .k-pillar__link:hover { color: var(--indigo); border-color: var(--indigo); gap: 14px; }

@media (max-width: 780px) {
  .k-pillars { grid-template-columns: 1fr; }
  .k-pillar { padding: 36px 28px; }
}

/* ---------- app card grid ---------- */
.k-app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 22px;
}
.k-app-card {
  background: var(--paper);
  border-radius: 20px;
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
  display: block;
}
.k-app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.k-app-card__icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  margin: 4px auto 14px;
  box-shadow: 0 4px 12px rgba(20,18,18,.12);
}
.k-app-card__name {
  font-weight: 700;
  font-size: 14px;
  line-height: 1.5;
  margin: 0 0 4px;
  color: var(--ink);
}
.k-app-card__meta {
  font-size: 12px;
  color: var(--ink-3);
  margin: 0 0 12px;
}
.k-app-card__cta {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 5px 12px;
  transition: background .2s, color .2s;
}
.k-app-card:hover .k-app-card__cta {
  background: var(--ink);
  color: var(--cream);
}

/* ---------- app groups ---------- */
.k-app-group {
  margin-bottom: 56px;
}
.k-app-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}
.k-app-group__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 24px;
  margin: 0;
  letter-spacing: 0.02em;
}
.k-app-group__title-en {
  font-family: var(--english);
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.15em;
  margin-left: 12px;
}
.k-app-group__meta {
  font-size: 13px;
  color: var(--ink-3);
}
.k-app-group__lead {
  color: var(--ink-2);
  margin: -16px 0 24px;
  max-width: 720px;
  line-height: 1.9;
}

/* ---------- column / content card list ---------- */
.k-editorial {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 32px;
}
.k-editorial__card {
  display: block;
  background: var(--paper);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
}
.k-editorial__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.k-editorial__thumb {
  aspect-ratio: 16/9;
  background: var(--sand);
  background-size: cover;
  background-position: center;
}
.k-editorial__body {
  padding: 22px 22px 26px;
}
.k-editorial__tag {
  display: inline-block;
  font-family: var(--english);
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--coral);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.k-editorial__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.55;
  margin: 0 0 10px;
  color: var(--ink);
}
.k-editorial__excerpt {
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.8;
  margin: 0;
}

/* ---------- featured column (hero card) ---------- */
.k-featured {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--paper);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.k-featured__thumb {
  aspect-ratio: 4/5;
  background: linear-gradient(135deg, #f7c6b4, #e8594e);
  background-size: cover;
  background-position: center;
  min-height: 400px;
}
.k-featured__body {
  padding: 48px 48px 48px 8px;
}
@media (max-width: 780px) {
  .k-featured { grid-template-columns: 1fr; }
  .k-featured__body { padding: 32px 28px 36px; }
  .k-featured__thumb { aspect-ratio: 16/10; min-height: 240px; }
}
.k-featured__tag {
  display: inline-block;
  background: var(--ink);
  color: var(--cream);
  font-size: 11px;
  font-family: var(--english);
  letter-spacing: 0.2em;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.k-featured__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.5;
  margin: 0 0 20px;
}

/* ---------- manifesto strip ---------- */
.k-manifesto {
  padding: 120px 0;
  background: var(--indigo);
  color: var(--cream);
  text-align: center;
}
.k-manifesto__eyebrow {
  font-family: var(--english);
  font-size: 12px;
  letter-spacing: 0.35em;
  color: var(--yellow);
  margin-bottom: 32px;
}
.k-manifesto__text {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.75;
  max-width: 780px;
  margin: 0 auto;
  letter-spacing: 0.04em;
}
.k-manifesto__text em {
  font-style: normal;
  color: var(--yellow);
}

/* ---------- studio meta ---------- */
.k-studio {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
@media (max-width: 780px) {
  .k-studio { grid-template-columns: 1fr; gap: 32px; }
}
.k-studio__label {
  font-family: var(--english);
  font-size: 13px;
  letter-spacing: 0.25em;
  color: var(--ink-3);
  padding-top: 4px;
}
.k-studio__body dl {
  margin: 0;
}
.k-studio__body dt {
  font-family: var(--english);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink-3);
  margin-top: 20px;
}
.k-studio__body dt:first-child { margin-top: 0; }
.k-studio__body dd {
  margin: 6px 0 0;
  font-size: 16px;
  color: var(--ink);
}
.k-studio__body a { border-bottom: 1px solid var(--ink); }

/* ---------- footer ---------- */
.k-footer {
  padding: 80px 0 48px;
  background: var(--ink);
  color: var(--cream);
}
.k-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}
.k-footer__brand {
  font-family: var(--english);
  font-size: 32px;
  margin-bottom: 8px;
}
.k-footer__brand em {
  font-style: normal;
  color: var(--coral);
}
.k-footer__tag {
  font-size: 14px;
  color: rgba(250,247,240,.6);
  margin: 0 0 44px;
  letter-spacing: 0.05em;
}
.k-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 40px;
  border-top: 1px solid rgba(250,247,240,.15);
}
@media (max-width: 780px) {
  .k-footer__grid { grid-template-columns: 1fr 1fr; }
}
.k-footer__col h4 {
  font-family: var(--english);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(250,247,240,.5);
  margin: 0 0 16px;
  text-transform: uppercase;
}
.k-footer__col a {
  display: block;
  padding: 6px 0;
  color: rgba(250,247,240,.9);
  font-size: 14px;
  transition: color .2s;
}
.k-footer__col a:hover { color: var(--coral); }
.k-footer__legal {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid rgba(250,247,240,.10);
  font-size: 12px;
  color: rgba(250,247,240,.5);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- utilities ---------- */
.k-mt-0 { margin-top: 0 !important; }
.k-mb-0 { margin-bottom: 0 !important; }
.k-mt-4 { margin-top: 40px; }

/* ---------- page-specific: page hero ---------- */
.k-pagehead {
  padding: 96px 0 60px;
  background:
    radial-gradient(ellipse 700px 300px at 20% 100%, rgba(245, 197, 66, .15), transparent 60%),
    var(--cream);
}
.k-pagehead__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}
.k-pagehead__label {
  font-family: var(--english);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--coral);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.k-pagehead__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.35;
  margin: 0 0 20px;
  letter-spacing: 0.02em;
}
.k-pagehead__sub {
  font-size: 17px;
  line-height: 2;
  color: var(--ink-2);
  max-width: 680px;
  margin: 0;
}

/* ---------- content list (learning) ---------- */
.k-content-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.k-content-card {
  display: block;
  background: var(--paper);
  border-radius: 16px;
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
}
.k-content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.k-content-card__grade {
  font-family: var(--english);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--coral);
  margin-bottom: 10px;
}
.k-content-card__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  margin: 0 0 12px;
  line-height: 1.5;
}
.k-content-card__meta {
  font-size: 13px;
  color: var(--ink-3);
  margin: 0;
}

/* ============================================================
   Column articles (single-post pages)
   ============================================================ */
.k-article {
  padding: 60px 0 80px;
  background: var(--cream);
}
.k-article__meta-row {
  font-family: var(--english);
  font-size: 12px;
  letter-spacing: 0.25em;
  color: var(--ink-3);
  text-transform: uppercase;
  margin-bottom: 24px;
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}
.k-article__meta-sep {
  color: var(--ink-mute);
}
.k-article__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 0 0 18px;
}
.k-article__subtitle {
  font-size: 16px;
  color: var(--ink-3);
  line-height: 1.9;
  margin: 0 0 32px;
}
.k-article__rule {
  border: 0;
  border-top: 1px solid var(--line);
  width: 60px;
  margin: 0 0 32px;
}
.k-article__lead {
  font-size: 17px;
  line-height: 2;
  color: var(--ink-2);
  margin: 0 0 48px;
}
.k-article__lead--dropcap::first-letter {
  font-family: var(--serif);
  font-size: 5em;
  float: left;
  line-height: 0.9;
  padding: 6px 12px 0 0;
  color: var(--coral);
  font-weight: 500;
}
.k-article__body h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.5;
  color: var(--ink);
  margin: 56px 0 20px;
  padding-top: 32px;
  border-top: 1px solid var(--line-soft);
}
.k-article__body h2:first-child {
  border-top: 0;
  padding-top: 0;
  margin-top: 0;
}
.k-article__body h3 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  margin: 32px 0 12px;
}
.k-article__body p {
  font-size: 16px;
  line-height: 2;
  color: var(--ink-2);
  margin: 0 0 20px;
}
.k-article__pullquote {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.75;
  color: var(--coral);
  margin: 40px 0;
  padding: 8px 0 8px 24px;
  border-left: 3px solid var(--coral);
}
.k-article__twoline {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.7;
  color: var(--ink);
  margin: 40px 0;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
.k-article__checklist {
  background: var(--cream-2);
  border-left: 3px solid var(--yellow);
  padding: 20px 24px 20px 44px;
  margin: 24px 0 32px;
  border-radius: 4px;
}
.k-article__checklist ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.k-article__checklist li {
  position: relative;
  padding-left: 20px;
  margin: 10px 0;
  line-height: 1.8;
  color: var(--ink-2);
}
.k-article__checklist li::before {
  content: "▸";
  color: var(--coral);
  position: absolute;
  left: 0;
  font-weight: 700;
}
.k-article__checklist strong {
  color: var(--ink);
}
.k-article-cta {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 36px 32px;
  margin: 48px 0;
  box-shadow: var(--shadow-md);
}
.k-article-cta__eyebrow {
  font-family: var(--english);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--coral);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.k-article-cta__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.55;
  color: var(--ink);
  margin: 0 0 18px;
}
.k-article-cta__lead {
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-2);
  margin: 0 0 24px;
}
.k-article-cta__button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  background: var(--coral);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.03em;
  border-radius: 999px;
  box-shadow: 0 6px 14px rgba(232, 89, 78, .28);
  transition: transform .18s;
}
.k-article-cta__button:hover {
  transform: translateY(-2px);
  color: #fff;
}
.k-article-cta__meta {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 12px;
}
.k-article__footer {
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.k-article__back {
  color: var(--ink-3);
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: color .18s, border-color .18s;
}
.k-article__back:hover {
  color: var(--coral);
  border-color: var(--coral);
}

/* Column index list */
.k-column-list {
  display: grid;
  gap: 32px;
}
.k-column-card {
  display: block;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
  transition: transform .18s;
}
.k-column-card:hover {
  transform: translateX(4px);
}
.k-column-card:hover .k-column-card__title {
  color: var(--coral);
}
.k-column-card__meta {
  display: flex;
  gap: 14px;
  align-items: center;
  font-family: var(--english);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.k-column-card__tag {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 3px 10px;
  border-radius: 999px;
  color: var(--coral);
  font-weight: 600;
}
.k-column-card__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.5;
  color: var(--ink);
  margin: 0 0 10px;
  transition: color .18s;
}
.k-column-card__sub {
  font-size: 14px;
  color: var(--ink-3);
  margin: 0 0 10px;
  line-height: 1.7;
}
.k-column-card__lead {
  font-size: 14px;
  line-height: 1.9;
  color: var(--ink-2);
  margin: 0 0 14px;
}
.k-column-card__more {
  font-family: var(--english);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--coral);
  text-transform: uppercase;
}